air passage provided by a retractable device containing intake and exhaust pipes; permits a submarine to stay submerged for extended periods of time
breathing device consisting of a bent tube fitting into a swimmer's mouth and extending above the surface; allows swimmer to breathe while face down in the water
suddenly and unexpectedly; "rain caught them unawares"; "sorrow comes to all, and to the young it comes with bittered agony because it takes them unawares"- A.Lincoln
without forethought or plan; inadvertently; "came upon the diamond unawares"
move with or as if with a tremor; "his hands shook"
undermine or cause to waver; "my faith has been shaken"; "The bad news shook her hopes"
bring to a specified condition by or as if by shaking; "He was shaken from his dreams"; "shake the salt out of the salt shaker"
shake (a body part) to communicate a greeting, feeling, or cognitive state; "shake one's head"; "She shook her finger at the naughty students"; "The old enemies shook hands"; "Don't shake your fist at me!"
move or cause to move back and forth; "The chemist shook the flask vigorously"; "My hands were shaking"
get rid of; "I couldn't shake the car that was following me"
address with continuously or persistently, as if with a barrage; "The speaker was barraged by an angry audience"; "The governor was bombarded with requests to grant a pardon to the convicted killer"
throw bombs at or attack with bombs; "The Americans bombed Dresden"
make a solicitation or petition for something desired; "She is too shy to solicit"
incite, move, or persuade to some act of lawlessness or insubordination; "He was accused of soliciting his colleagues to destroy the documents"
make a solicitation or entreaty for something; request urgently or persistently; "Henry IV solicited the Pope for a divorce"; "My neighbor keeps soliciting money for different charities"